[pypy-dev] Parsing in PyPy (and runicode)

Frank Wierzbicki fwierzbicki at gmail.com
Fri Feb 27 15:42:06 CET 2009

On Thu, Feb 26, 2009 at 2:55 PM, Leonardo Santagada <santagada at gmail.com> wrote:
> The thing that would be great is if pypy and jython would use the same
> parser using antlr so the work to support python 3.0 (and 2.7, 2.8, etc)
> could be partially shared :)
This would indeed be very cool.  Also, ANTLR 3.x supports a really
interesting form of grammar inheritance which would help us share a
base grammar (I remember it has a sort of diff-merge form of
inheritance, my google skills are failing me, I'll find a reference
today sometime I'm sure).  At the JVM Language summit last year, I met
ANTLR expert Jim Idle, and he expressed an interest in seeing if the
Jython grammar could be used as a grammar for CPython.  I've copied
Jim Idle on this email.

As a side note, it appears that Guido van Rossum has had some positive
experiences with ANTLR recently:



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